ONTOLOGY REPORT - ANNOTATIONS

Conveys a signal from an upstream receptor or intracellular signal transducer, converting the signal into a form where it can ultimately trigger a change in the state or activity of a cell.

Comment:

This term is intended for annotation of signal transducers that act directly or indirectly downstream of a receptor. For receptors themselves, consider annotating to the term 'receptor activity ; GO:0004872'.